@base_bg: green;
@base_color: blue;
@base_size: 30px;

html,
body,
div,
h2 {
    margin: 0;
    padding: 0;
}

#app {
    padding: 20px;
    border: 1px solid #ddd;
    border-radius: 20px;
    background: @base_bg ;
    margin: 50px;

    h2 {
        color: @base_color;
        font-size: @base_size;
        font-weight: 100;
        text-align: center;
    }
}